I don't know if you have access to craft stores, but our's here sell the basic frames for them in all shapes, colors, and sizes. Then you can buy feathers, sequins, glitter paints, whatever you want to put on it. I did this with a bunch of friends for a Mardi Gras themed party a few years ago. We had blast putting together the masks and came out with some really great results. Everyone thought we had bought them like that.
